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	<title>Steffen Haugk</title>
	<link>http://haugk.co.uk</link>
	<description></description>
	<lastBuildDate>Sat, 02 Jul 2011 19:32:29 +0000</lastBuildDate>
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		<title>Cogwheels with Raphaël – part 2</title>
		<description><![CDATA[Teething In this article we will grow teeth on our cogwheel. We start with a wheel having 12 teeth and we double that number. As explained in the last article, we have function getPath() dedicated to generating the path in string format. To animate teething we generate the new path and then morph: 180, 180 [...]]]></description>
		<link>http://haugk.co.uk/2011/06/05/cogwheels-with-raphael-part-2/</link>
			</item>
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		<title>Thoughts on Fibonacci Numbers</title>
		<description><![CDATA[In 1988, round about the time I first learned of Binet&#8217;s formula which appears to have been described by de Moivre some 50 years before Binet was born, I was calculating for no good reason on my very own Casio FX730P when a friend looked over my shoulder and made a discovery. She had noticed [...]]]></description>
		<link>http://haugk.co.uk/2011/05/30/thoughts-on-fibonacci-numbers/</link>
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		<title>Cogwheels with Raphaël &#8211; part 1</title>
		<description><![CDATA[As a way to learn Raphaël I want play with cogwheels. I will build this up gradually. This is the first installment. Let&#8217;s begin with two cogs. Below is a working example of them, press the buttons to try the different easings that are supported by the Raphaël animate method. First create canvas. Next define [...]]]></description>
		<link>http://haugk.co.uk/2011/05/28/cogwheels-with-raphael-part-1/</link>
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		<title>Pocket calculator with Raphaël &#8211; part 2: The LED display</title>
		<description><![CDATA[Let&#8217;s have a look at some implementation details of the upside-down calculator mentioned in this post. What we are interested in is the LED display. Remember we are using Raphaël. Below is one digit of the 7 segment LED. Click the buttons to control the segments and the decimal point. Because the digit is slanted, [...]]]></description>
		<link>http://haugk.co.uk/2011/05/22/pocket-calculator-with-raphael-part-2-the-led-display/</link>
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		<title>micro-PROLOG: variable names</title>
		<description><![CDATA[micro-PROLOG variable names consist of a prefix character followed by an optional subscript number. Here are the details: prefix character : X &#124; Y &#124; Z &#124; x &#124; y &#124; z subscript number : 0..127 The string of digits that form the subscript is interpreted as a number and internally stored as such against [...]]]></description>
		<link>http://haugk.co.uk/2011/05/14/micro-prolog-variable-names/</link>
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		<title>&lt;isindex&gt; tag</title>
		<description><![CDATA[To send data to a www server the http client posts form data by either the GET or the POST method. But this was not always the case. The form tag has only been introduced in HTML 2.0 (IETF RFC 1866). The first specification, known as &#8220;Hypertext Markup Language (HTML)&#8221; Internet-Draft, does not mention forms. [...]]]></description>
		<link>http://haugk.co.uk/2011/05/09/isindex-tag/</link>
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		<title>Animated GIFs &#8211; part 2</title>
		<description><![CDATA[I saw a wooden model of such a gear in 1982, and always wanted to build one myself. Instead I&#8217;ve modelled it in AutoCAD and created this GIF (around 1998).]]></description>
		<link>http://haugk.co.uk/2011/05/06/animated-gifs-part-2/</link>
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		<title>micro-PROLOG: programs</title>
		<description><![CDATA[In 1987 I started learning PROLOG. I had a copy of micro-PROLOG, which had been developed at the Imperial College in London. I liked the LISP-like syntax and loved learning micro-PROLOG. Here you can see my original 8&#8243; floppy. If only I had a drive to read it, I would be able to play with [...]]]></description>
		<link>http://haugk.co.uk/2011/05/05/micro-prolog-programs/</link>
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		<title>Animated GIFs &#8211; part 1</title>
		<description><![CDATA[When I was a webmaster for the first time, webpages were pretty static. With my provider (demon) anyway. The only way to make anything move was an animated GIF. This train started as a cartoon from a book. There it had a diesel engine. I have ruined the joke by replacing that with a steam [...]]]></description>
		<link>http://haugk.co.uk/2011/05/04/animated-gifs-part-1/</link>
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		<title>Prime numbers in BASIC</title>
		<description><![CDATA[In the beginning were &#8230; prime numbers. For some reason I just had to write a program that printed out a long list of prime numbers. Nobody knows why. Those were the early 80s! The resulting code was both short and fast: So how what does the code do? Three ideas have been used: only [...]]]></description>
		<link>http://haugk.co.uk/2011/05/03/prime-numbers-in-basic/</link>
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